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Amyloid-Driven Allostery

delete2024-12-01
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J
J. S. Garcha
J
Jinfeng Huang
K
Karla Martinez Pomier
G
Giuseppe Melacini *
DOI:10.1016/j.bpc.2024.107320delete
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Abstract

Abstract

En 中文
The fields of allostery and amyloid-related pathologies, such as Parkinson's disease (PD), have been extensively explored individually, but less is known about how amyloids control allostery. Recent advancements have revealed that amyloids can drive allosteric effects in both intrinsically disordered proteins, such as alphasynuclein (alpha S), and multi-domain signaling proteins, such as protein kinase A (PKA). Amyloid-driven allostery plays a central role in explaining the mechanisms of gain-of-pathological-function mutations in alpha S (e.g. E46K, which causes early PD onset) and loss-of-physiological-function mutations in PKA (e.g. A211D, which predisposes to tumors). This review highlights allosteric effects of disease-related mutations and how they can cause exposure of amyloidogenic regions, leading to amyloids that are either toxic or cause aberrant signaling. We also discuss multiple potential modulators of these allosteric effects, such as MgATP and kinase substrates, opening future opportunities to improve current pharmacological interventions against alpha S and PKA-related pathologies. Overall, we show that amyloid-driven allosteric models are useful to explain the mechanisms underlying disease-related mutations.
Keywords:
Amyloids
Allostery intrinsic disordered proteins
Globular signaling proteins
Cyclic adenosine monophosphate analogs
cAMP
cGMP
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Journal

Biophysical Chemistry cover
Biophysical Chemistry
IF:
2.2
Papers:
3.9K
Citations:
4.5K

Organization

M
McMaster University
Scholars:
3.6W
Papers: 3.3W
Citations: 4.4W